The USB-C to USB Adapter lets you connect iOS devices and many of your standard USB accessories to a USB-C or Thunderbolt 3 (USB-C) enabled Mac. Plug the USB-C end of the adapter into a USB-C or Thunderbolt 3 (USB-C) port on your Mac, and then connect your flash drive, camera, or other standard USB device. You can also connect a Lightning to USB cable to sync and charge your iPhone, iPad, or iPod.Compatible with the following computers:12-inch MacBook, 13-inch MacBook Pro - Thunderbolt 3 (USB-C), 15-inch MacBook Pro - Thunderbolt 3 (USB-C), 21.5-inch iMac - Thunderbolt 3 (USB-C), 27-inch iMac - Thunderbolt 3 (USB-C); iMac Pro.